Pistol.



No. 837,867. PATENTED DEC. 4, 1906.

.0. RMOSSBERG.

PISTOL. ABPLIOATION FILED APB.20,1905.

3 SHEEN-SHEET 1.

, 'PATENTED DEC. 4. 1906. 0. P, MOSSBERG.

PISTOL. APPLIUATIQN FILED APR.20,1906.

. 3 SKEETSSHEET 2. 0

"No. 837,867. PATEN' IED DEC. 4, 1906.

O. P. MOSSBERG. PISTOL.

APPLICATION FILED APR.20,1906.-

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UNTTED STATES PATENT GFFTGE.

PISTOL.

ire. 837,867.

Specification of Letters Patent.

Patented Dec. 4, 1906.

Application filed April 20, 1905. Serial No. 256,528-

To all whom it may concern.-

Be it known that I, OSCAR F. MossBERG, a citizen of the United States ofAmerica, residing at Chicopee Falls, in the county of Hampden and Stateof Massachusetts, have invented new and useful Improvements in Pistols,of which the following is a specification.

This invention relates to firearms, and especially to the constructionof a multiplebarrel pistol, the object of the invention being to providea pistol which by reason of its shape may be carried in the pocketwithout inconvenience and which may be cooked and fired by the actuationof a sliding member which moves in and out of the frame of the arm, allof the operative parts of the device being inclosed, whereby in case ofnecessity the arm may be fired while held in the pocket, there being noparts extending beyond the frame to interfere with this operation.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a side elevation of the pistol with one cheek-piece removed.Fig. 2 is a vertical section taken longitudinally of the pistol, certainof the parts being left in full lines, the plane of the section beingsubstantially on line 2 2, Fig. 4. Fig. 3 is a sectional view takensubstantially in the same plane as Fig. 2, the barrel, however, beingshown in elevation and the parts being in the position they would occupyat the moment of firing or just prior to that moment. Fig. 4 is asectional plan view, the plane of the section being on line 4 4 of Fig.2. Fig. 5 is an elevation of the rear end of the barrels and thebarrel-locking device thereon. Fig. 6 is a side elevation of the barrelsand a part of the frame, the barrels being shown tipped down in aposition to permit the extraction of the empty shells. Fig. 7 is atransverse section through the barrels on line 7 7, Fig. 6. Fig. 8 is aside elevation of a part of the frame and barrels, the cheek-piece beingremoved from the frame and the hammer being shown in section in theplane of line 2 2, Fig. 4. Fig. 9 is a perspective view of a rotatablefiringpin carried on the hammer. The scale of these drawings is abouttwice the natural size.

The frame of the firearm is indicated by a and is provided withdownwardly-extending portions 1), which constitute bearings for aportionc uniting the two parallel verticallydisposed sides (1 and e.(Shown in Fig. 4.)

The hammer f is pivotally supported on the pin 9 in the upper part ofthe frame and swings between the two sides (1 and e of thecocking-slide, as shown in the various figures. For convenience ofmanufacture the pin 9 is supported in a block 9, fixed to the upper partof the frame by a screw 0/, and it will be referred to farther on.

Near the bottom of the cocking-slide the cocking-lever h is pivotallysupported on the pin j, the upper end of this lever engaging a notch kin the hammer. On the pin 9' is a spring m, bearing on the bottom of theslide and the bottom of the cocking-lever h to hold the upper end of thelatter in operative relation to the notch 7c. The mainspring, isindicated by 0, and it consists of a U-shaped spring supported in theframe between the cheek-pieces p and bearing by one end on the hammer, aroll 1" being mounted on the latter to do away with the friction betweenthe hammer and the end of the spring. A spring 8, suitably located inthe frame, is connected with the cocking-slide, as shown, whereby afterthe slide has been moved into the frame it may be returned to normalposition, the two extremes of the movement of this slide being shown inFigs. 2 and 3.

It is immaterial what form of spring is used for the slide or how it isapplied thereto, as any spring having suflicient force and scope toreturn the slide from the position shown in Fig. 3 to that shown in Fig.2 may be employed.

The barrels t are pivotally hung to the frame on the screw or pin 1),and suitably located on that side opposite to this pivotal point is alocking-lever w, which is pivoted in a slot milled in the extension 00of the barrel on a pin y and is provided with a hooked end 3, whichsnaps over the edge of the frame a to hold the barrels up against thefront end of the frame in firing position, a suitable spring 4 servingto hold this hooked end in engagement with the frame, the latter beingcut away, as shown at 5, Fig. 6, to receive the end of thelocking-lever.

The barrels t, as shown in Fig. 7, are four in number and made in onepiece, being grouped equidistantly about a common center, and at thiscentral point a hole is bored to receive the extractor-stem 6, which ispro vided with a spiral spring 7, one end of the stem being connected toa U-shaped yoke 8, (shown in Figs. 4 and 5 most clearly,) whichconstitutes with said stem means to extract the empty shells from thefour barrels simultaneously, the yoke 8, as shown in Fig. 5, beingnotched at the proper places thereon where it extends across the openends of the barrels to engage the shells 9 under the heads thereof asshown in Fig. 6.

The opposite sides of the barrel are pro vided with grooves in which theyoke 8 may slide, there being a stop pin or screw 10 in each leg of theyoke to'limit the movement thereof outwardly, the ends of these stoppinsentering grooves 12, milled into the sides of the barrels and bringingup against the end of the slot when the extractor is moved outwardly, asin Fig. 6.

As usual with extractor devices, that part which engages the shells islet in flush with the end of the barrels.

This pistol being one of that type in which the barrels are stationary,the hammer is provided with a rotating firing-pin 14, having aprojection 15 thereon which will strike the cartridge in a manner toignite the charge therein when the hammer falls. This firing pin or headis provided with ratchet-teeth on the back side thereof, as shown in thevarious figures of the drawings and indicated by 16 and is shown inperspective in Fig. 9. This is mounted rotatably on the pin 17 on thefront side of the hammer at the lower end thereof and when the hammerfalls reaches the cartridges through an opening 14 in the front end ofthe frame. This firing pin or head is so positioned as to be engaged bythe hand 18, pivotally supported at 19 in the block g.

As shown in the plan view in Fig. 4, the location of the hand is nearone side of the hammer, which has a slot 20 (shown in Fig. 8) milledtherein, in which the hand may play and whereby the lower end thereof inengagement with the ratchet-teeth 16 of the rotating firing-pin may besteadied, the hand be ing held in operative relation to the ratchetteethby means of a spring 21, fixed by one end on a. pin 22, and whoseopposite end passes through the hub of the hand, as shown in Fig. 8.Therefore the hand swinging on its pivot will follow the movements ofthe hammer, the extremes of the movement of the hand being shown inFigs. 1 and 8, and it will be observed thatas the hammer moves fromtheposition shown in Fig. 1 backward and upward it is moving toward theaxis of the hand. Therefore the engagement of the latter with theratchet-teeth of the firinghead will effect the rotation of the latter,and,

vice versa, as the hammer swings forward the lower end of the hand willswing upward to engage another tooth of the ratchet, the distancebetween the pivotal points of the hand and the hammer being such as toprovide for the required degree of rotation of the firing pin or head.

If more or less than four barrels were to be used, then the distancebetween the axis of the hand and the hammer would have to be varied in amanner to give the desired throw to the firing-pin.

The cheek-pieces 29 may be secured to the frame by means of a screw 23or in any convenient way.

Reference has been made to the block g, which is located in the upperforward end of the frame, being secured therein by the screw 0/. Thisblock is employed merely as a convenience in manufacture, and a planview thereof would show that it consists of two parallel plates unitedtogether by that portion thereof into which the screw a enters. One ofthese plates 24 (shown in Fig. 3) is shorter than the'other, which isindicated by 25 and seen in Fig. 8. 24 and 25 the hammer is hung, asstated, on the pin g, .and on that part of the plate 25 which extendsbeyond the plate 24 the hand is supported, as shown in. Figs. 1 and 8,the hub thereof extending through the plate.

In using this pistol the arm is held in the hand in such osition thatthe upper edge of the frame will rest against the palm of the hand, thesecond finger passing under the cocking-slide and the barrels extendingout from between the thumb and the forefinger.

The main portion of the arm is thus inclosed in the hand, and by thecontraction of the second finger the cocking-slide is moved from theposition shown in Fig. 1 to that shown in Fig. 3, swinging back thehammer, which at the limit of its movement becomes disengaged from thecocking-lever h and is thrown by its spring 0 forward against acartridge, and as the hammer'is drawn back to cocked position thefiring-pin 4 will be partially rotated by the action of the hand, asexplained, and brought into position to strike another cartridge when itnext falls. WVhen all of the barrels have been discharged, the hookedend 3 of the locking-lever w may be thrown out of engagement with theframe and the barrel swung down to the position shown in Fig. 6,whereupon the extractor-yoke 8 may be actuated to remove the emptyshells from the barrels preparatory to reloading the latter.

It is desirable to prevent the firing-pin 14 from being rotated past thepoint at which it is desired to stop it, which might happen should it byreason of long use wear loose on the pin 17, on which it'is supported,and therefore a springactuated stop-pin 26 is located in the hammer, asshown in Fig. 2, with its Between these plates point extending out fromthe edge thereof, which by the spring 27 is held in yielding contactwith the rear end of the firing-pin in such position that it will belocated in front of one of the ratchet-teeth 16 by the movement of thehammer when the firing-pin has reached the limit of its rotativemovement through the action of the hand. By means of this spring-pin thefiring-pin will therefore rotate under a suflicient frictionalresistance to prevent it from overthrowing. The position of this pinrelative to the rotatable firing-pin is shown in Fig. 9.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is

1. The combination in a firearm-of a plu rality of stationary barrels, acocking-slide movable reciprocally in the frame of the arm, a hammeroperatively located relative to the cocking-slide, and mechanismactuated by the movement of the slide to swing the hammer to full-cockedposition a rotatable firingpin on the hammer, and means, permitted bythe movement of the hammer to rotate the firingpin to'locate the same inoperative relation to each barrel in succession, said means comprising aspring-actuated swinging hand located in the hammer.

2. The combination in a firearm of a plurality of stationary barrels, acocking-slide movable reciprocally in the frame of the arm, a hammeroperatively located relative to the cocking-slide, and a cocking-leveron the slide to engage the hammer; a rotating firingpin on the hammerhaving ratchet-teeth thereon, and a hand arranged to engage one of theratche t teeth during movement of the hammer to locate the rota ablefiring-pin in proper relation to the barrels.

3. The combination with the frame of a firearm, of a plurality ofbarrels pivotally supported on the frame to swing toward and from oneend thereof, a locking-lever to secure the barrels to the frame infiring position, a hammer inclosed in the frame, a cockingslide movablereciprocally toward and from the hammer, and means on the slide toengage the hai mer to move the latter to fullcocked posit on; arotatable firing-pin on the hammer, and spring-actuated means actue atedin unison with the movements of the hammer to rotate the firing-pin tolocate the frame having parallel slideways extending I from one sidethereof, and a plurality of barrels pivotally supported on one end ofthe frame to swing toward and away from the frame, and a suitablelockinglever to secure the barrels in firing position against the end ofthe frame, there being a hole in the frame the periphery of which willintersect the periphery of the bore of each barrel, together with asuitable hammer inclosed in the frame, and a cocking-slide movable insaid slideways reciprocally to effect the cocking of the hammer, and arotatable firing-pin on the hammer to fit said hole through the frame,and means to rotate the firing-pin to locate the same in operativeposition relative to each barrel successively.

5. In a firearm, a substantially rectangular frame having an opening inone side thereof, and a cocking-slide movable into and out of the framethrough said opening, the frame being provided with slideways for thecocking-slide; a hammer pivotally supported in the frame opposite tothat side thereof in which the cocking-slide is supported, acocking-lever pivotally mounted on the slide and operatively engagingthe hammer to cock the same when the cocking-slide is moved in onedirection; a rotatable firing-pin a hand operatively located relative tothe firing-pin to rotate the same simultaneously with the cookingmovement of the hammer, and a plurality of barrels supported on theframe in operative relation to the firing-pin.

6. The combination with the frame of a firearm, of a plurality ofbarrels pivotally supported thereon, means for locking the same to theframe, a transversely-movable cocking-slide in the frame, a hammeropererated thereby, a rotatable firing-pin on the hammer, a hand foroperating the firing-pin having its axis eccentrically located in theframe with relation to the axis of the hammer and in an opening of thelatter, whereby when the hammer is operated the firing-pin will berotated as described.

OSCAR F. MOSSBERG.

Witnesses:

WM. H. CHAPIN, K. I. CLEMONs.

